PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-8173Muffler,exhaust

Cummins Filtration Inc. · NSN 2990-00-992-6808 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-992-6808 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-992-6808. Primary manufacturer part number: T-8173.
Features
  • Muffler,exhaust — FSC 2990
  • Inlet Connection Type: UNTHREADED SINGLE INLET
  • Coolant Type: AIR
  • Body Shape: OVAL
  • Operating Position: UNIVERSAL
  • Design Type: DRY
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Baffle Quantity: 1
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-992-6808, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Cummins Filtration Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-992-6808
Primary Part NumberT-8173
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCummins Filtration Inc.
StatusACTIVE
Inlet Connection TypeUNTHREADED SINGLE INLET
Coolant TypeAIR
Body ShapeOVAL
Operating PositionUNIVERSAL
Design TypeDRY
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Baffle Quantity1
Muffler DesignSTRAIGHT THROUGH W/BAFFLE
Outlet LocationLOCATED ON SIDE OF BODY
Outlet Outside Diameter6.125 INCHES NOMINAL FIRST OUTLET IN
Inlet Inside Diameter2.110 INCHES NOMINAL SINGLE INLET IN
Inlet LocationLOCATED ON SIDE OF BODY
Outlet Connection TypeUNTHREADED FIRST OUTLET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6350-00-184-9527T817-3 INTERCHANGEABLE
Horn,signal
Leslie Controls, Inc. Dba Leslie Controls Inc
2825-00-390-13118173 INTERCHANGEABLE
Bushing with Key
Northrop Grumman Systems Corporation Div Marine Systems
5940-00-549-86698168879 INTERCHANGEABLE
Terminal Board
Us Army Aviation and Missile Command
5310-00-596-81638173 INTERCHANGEABLE
Nut,plain,extended Washer,hexago
M.t. Davidson Company
9390-00-878-2787S1055-1-96 INTERCHANGEABLE
Nonmetallic Channel
Textron Aviation Inc
5340-00-981-870168173 INTERCHANGEABLE
Cap,filler Opening
Shaw Development, Llc
5355-00-988-21635020-5621 INTERCHANGEABLE
Knob
Hewlett-Packard Company Dba HP
4140-01-123-6066 INTERCHANGEABLE
Fan,cooling
5985-01-216-2311300-T-MN INTERCHANGEABLE
Dummy Load,electrical
Bird Electronic Corporation Div Bird Electronic Corp
6665-01-425-167221940-00 INTERCHANGEABLE
Water Testing Kit,bacteriologica
Hach Company Dba Hach Co
Cross-Reference Index
Part NumberManufacturer
GB-T8173 Brighton Cromwell Llc (USA)
8173 Cummins Filtration Inc. (USA)
ABT8173 Brighton Cromwell Llc (USA)
T-8173 PRIMARY Cummins Filtration Inc. (USA)
726H1 Linde Lift Truck Corp. (USA)
GB-T8173 Ar Bee Corp (USA)
ABT8173 Ar Bee Corp (USA)
Related Parts
6350-00-184-9527INTERCHANGEABLE
HORN,SIGNAL
T817-3
2825-00-390-1311INTERCHANGEABLE
BUSHING WITH KEY
8173
5940-00-549-8669INTERCHANGEABLE
TERMINAL BOARD
8168879
5310-00-596-8163INTERCHANGEABLE
NUT,PLAIN,EXTENDED WASHER,HEXAGO
8173
9390-00-878-2787INTERCHANGEABLE
NONMETALLIC CHANNEL
S1055-1-96
5340-00-981-8701INTERCHANGEABLE
CAP,FILLER OPENING
68173
5355-00-988-2163INTERCHANGEABLE
KNOB
5020-5621
4140-01-123-6066INTERCHANGEABLE
FAN,COOLING
5985-01-216-2311INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
300-T-MN
6665-01-425-1672INTERCHANGEABLE
WATER TESTING KIT,BACTERIOLOGICA
21940-00
1680-01-600-0477INTERCHANGEABLE
CLAMP ASSEMBLY
8173

Frequently Asked Questions

What is NSN 2990-00-992-6808?

NSN 2990-00-992-6808 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-992-6808?

NSN 2990-00-992-6808 has 7 cross-referenced part numbers: GB-T8173 (Brighton Cromwell Llc), 8173 (Cummins Filtration Inc.), ABT8173 (Brighton Cromwell Llc), T-8173 (Cummins Filtration Inc.), 726H1 (Linde Lift Truck Corp.) and 2 more.

What NSN replaces 2990-00-992-6808?

There are 11 known substitutes for 2990-00-992-6808: 6350-00-184-9527, 2825-00-390-1311, 5940-00-549-8669 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-8173?

Key specifications for T-8173: Inlet Connection Type: UNTHREADED SINGLE INLET; Coolant Type: AIR; Body Shape: OVAL; End Item Identification: 3930-00-738-5938. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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